limx→a(sinx⼀sina)^1⼀x-a(a≠kpi)使用重要极限和等价无穷小做,详细过程?

2025-06-23 03:33:07
推荐回答(1个)
回答1:

=e^limln(sinx/sina)/(x-a)
=e^lim(sinx/sina-1)/(x-a)
=e^lim(sinx-sina)/sina(x-a)
=e^limcosx/sina
=e^cota